Spool or bobbin



Jan. 30, 1945. CROOKS 2,368,450

SPOOL 0R BOBBIN Filed July 13, 1944 Patented Jan. 30, 1945 UNITED STATESPATENT OFFICE Earl G. Crooks, Blnghnmton, N. Y., nllllnor toLester-shire Spool and Manufacturing Company, Johnson City, N. Y., acorporation of New York Application July is, 1944, Serial No 544,704

(o1. z4z-us) 14 Claim.

This invention is a novel spool or bobbin made of welded seam steeltubing having internalwooden bushings at its ends provided with bores inwhich metal bushings are secured to form the spindle bearings, thetubing being formed or pressed around the walls of the wooden bushings,thus providing a spool or bobbin which will not wear out or deteriorate,the same being practically indestructible, and the spool or bobbin beingbalanced and running true at high speeds.

One object of my invention is to provide a spool or bobbin of the abovetype, having external raised bead ortions formed on the tubing andwooden bushings at one or both ends of the spool, so that the yarnthereon will not sluff off, the raised bead portions of the tubinsecuring the correspondingly shaped bead portions of the wooden bushingsto maintain the bushings positioned within the tubing.

Another object of the invention is to provide a pool o-r bobbin of theabove type having a diametrically disposed driving slot in one end,extending through the tubing and wooden bushing, the base of which slotis protected by bent tongues integral with the metal tubing andoverlying the base of the slot to prevent the base of the slot in thewooden bushing from undue wear.

Other minor objects or the invention will be hereinafter set forth.

I will explain the invention with reference to the accompanying drawing,which illustrates several practical embodiments thereof to enable othersfamiliar with the art to adopt and use the same; and will summarize inthe claims the novel features of construction, and novel combinations ofparts, for which protection is desired.

In said drawing- Fig. 1 is an elevational view of one embodi- I ment ofmy invention.

Fig. 2 is an enlarged longitudinal section on the line 2-2, Fig. 1,partly broken away.

Fig. 3 is an end view of the bobbin shownin Fig. 1, looking at theslotted end.

Fig. 4 is a longitudinal section showing a modification of the slottedend of the spool or bobbin.

Fig. 5 is a longitudinal section showing another modification of theslotted end of the spool or bobbin.

As shown in Figs. 1-3, the bobbin preferably comprises a length ofwelded seam steel tube l, in one end of which is tightly fitted a woodento securely lock bushing 2 within the end of tube I so as to preventaxial movement therein, the raised portion la 01 the tube i also servingto prevent any yarn or the like from slufllng off the end of the spoolor bobbin. Bushing 2 may be made of any desired wood, and has a tightfit within the adjacent end of tube I. In bore in of bushing 2 is ametal bushing 3 of any desired metal which forms one of the spindlebearings, and which preferably has its inner ends slightly flaredoutwardly, as at 3a, by rolling, so as to bite into the wall of bore 2ato prevent bushing 3 from shifting axially of bore 2a.

In the opposite end of tube i is a wooden bushing 4 similarln allrespects to the bushing 2, same having a bore 4a of same size as thebore 201, and the wooden bushing 4 making a tight fit within theadjacent end of tube l. Bushing l also has an external annular raisedhead 40 similar to the bead 2c of bushing 2, the metal of tube i beingformed or pressed over the raised bead 40, as at lb, *to lock bushing 4in tube 9 and also to prevent the yarn from slufllng of! the adjacentend of the tube. Within the bore in of wooden bushing l is a metalbushing 5 forming the other spindle bearing of the spool or bobbin, theouter ends of the bushing 5 being outwardly flared as at 5a by rollingto bite into the wall of bore is of bushing 4 and prevent axialdisplacement of bushing 5.

Extending diametrically across the outer end of wooden bushing 4 andthrough the adjacent portions of tube i is a transverse slot 4d adaptedto be engaged by a driving member in order to rotate the spool orbobbin. The base of slot 4d at each end is protected by inwardly benttongues ic integral with the tube l as shown in Figs. 2 and 3 andoverlying the base of slot 4d. The raised bead portion lb of tube i inway of the slot 40 is slitted as at id along lines parallel with thewalls of the slot, and the tongues lc which protect the base of slot 4dare readily formed integrally with the tube i from the metal includedbetween the parallel slits id as shown more particularly in Fig. 3.

In Fig. 4 a modification is shown in which the raised bead lb at theslotted end of the tube l is omitted. The bushing 4 in this modificationis similar to that shown in Fig. 2 with the exception that an externalannular groove 4:: is provided in the wooden bushing 4 at the inner endofthe annular external bead portion 40,

, and the metal of tube l is formed or depressed,

as at le', into the annular groove 41:. Thus, the

I crown of the annular bead portion 40 in Fig. 4

lies within the diameter of the major portion of the tube. Except asabove noted, the parts in Fig. 4 are otherwise identical with thoseabove described in connection with Fig. 2, and said parts bear the samereference numerals.

In the modification shown in Fig. 5, the wooden bushing l at the slottedend or the spool or bobbin is identical with that above described inconnection with Fig. 4, and the parts bear the same reference numerals.In this modification the end of tube l is pressed by rolling into theannular groove 42:, the rolled portion being indicated by the numeral ifand the end of the bushing terminating within said groove 4:: so thatthe annular bead 4c of the bushing 4 beyond the an.- nular groove 4: isleft uncovered by the metal of tube I. Otherwise, the construction ofthe parts in Fig. 6 are identical with those previously described inconnection with the preceding figures.

My novel spool or bobbin is thus made of welded seam steel tubing, andis provided with wooden bushings at each end into which are securedmetal bushings which form the spindle bearings; and by reason oi theconstruction the bobbin cannot readily wear out or deteriorate, the samebeing practically indestructible. The bobbins thus constructed are wellbalanced and run true at high speeds, and may be provided with raisedbeads at one or both ends so that the yarn thereon will not sluflf oil.

Moreover, the spools or bobbins may well be used to steam yarn withoutdeteriorating the bobbin in the slightest, or without injury to theyarn, provided the tube was given a coating of Du- Lite" or some similarmaterial to prevent rust or corrosion in event the tube I itself is notmade of rustless or non-corrosive material.

I do not limit my invention to the exact forms shown in the drawing, forobviously changes may be made therein within the scope of the claims.

I claim:

1. A spool or bobbin, comprising a welded seam metallic tube; woodenbushings tightly fitted into the ends of the tube, said bushings havingaxial bores; annular external beads on said bushings, the ends of thetube having bulged portions conforming with and receiving the beads tomaintain the bushings against movement axially oi the tube; and metallicbushings tightly fitted within the bores of the wooden bushings.

2. In a spool or bobbin as set forth in claim 1, said metallic bushingseach having outwardly fiared ends biting into the wall of said bore.

3. A spool or bobbin, comprising a welded 'seam metallic tube; woodenbushings tightly fitted into the ends of the tube, said bushings havingaxial bores; annular external beads on said bushings, the ends of thetube having bulged portions conforming with and receiving the beads tomaintain the bushings against movement axially of the tube; metallicbushings tightly fitted within the bores of the wooden bushings; and oneend of said spool having a diametrically disposed slot extending throughthe wooden bushing, the wall of the tube in way of the slot beingomitted.

4. In a spool or bobbin as set forth in claim 3, said metallic bushingseach having outwardly flared ends biting into the wall of said bore.

5. In a spool or bobbin as set forth in claim 3, the wall of the tube inway of the ends of the slot being slitted and inturned to overlie andprotect the base of the slot.

6. A spool or bobbin, comprising a welded seam metallic tube; woodenbushings tightly fitted into the ends of the tube, said bushings havingaxial bores; annular external beads on said bushings, the tube at oneend of the spool having asoasso a bulged portion conforming with andreceiving the related bead to maintain the bushing against movementaxially oi the tube; metallic bushings tightly fitted within the boresof the wooden bushings; the opposite end or said spool having adiametrically disposed slot extending through the wooden bushing, thewall 0! the tube in way oi the slot being omitted; said wooden bushingat the slotted end 0! the spool having an external annular groovedisposed at the inner end of the annular bead; and the overlying wall ofthe tube being pressed inwardly and filling said groove.

'7. In a spool or bobbin as set forth in claim 6, said metallic bushingseach having outwardly flared ends biting into the wall of said bore.

8. In a spool or bobbin as set forth in claim 8, the wall of the tube inway of the ends of the slot being slitted and inturned to overlie andprotect the base of the slot.

9. A spool or bobbin, comprising a welded seam metallic tube; woodenbushings tightly fitted into the ends of the tube, said bushings havingaxial bores; annular external beads on said bushings, the tube at oneend of the spool having a bulged portion conforming with and receivingthe related bead to maintain the bushing against movement axially of thetube; metallic bushings tightly fitted within the bores of the woodenbushings; the opposite end of said spool having a diametrically disposedslot extending through the wooden bushing, the wall 01 the tube in wayof the slot being omitted; said wooden bushing at the slotted end of thespool having an external annular groove disposed at the inner end of theannular head; the overlying wall of the tube being pressed inwardly tofill said groove; and the crest of the bead at the slotted end of thespool being of same radius as the main portion of the body of the tube.

10. In a spool or bobbin as set forth in claim 9, said metallic bushingseach having outwardly flared ends biting into the wall of said bore.

11. In a spool or bobbin as set forth in claim 9, the wall of the tubein way of the ends of the slot being slitted and inturned to overlie andprotect the base of the slot.

12. A spool or bobbin, comprising a welded seam metallic tube; woodenbushings tightly fitted into the ends of the tube. said bushings havingaxial bores; annular external beads on said bushings, the tube at oneend of the spool having a bulged portion conforming with and receivingthe related head to. maintain the bushing against movement axially ofthe tube; metallic bushings tightly fitted within the bores of thewooden bushings; the opposite end of said spool or bobbin having adiametrically disposed slot extending through the wooden bushing, thewall of the tube in way of the slot being omitted; said wooden bushingat the slotted end of the spool having an external annular groovedisposed at the inner end of the annular bead; the overlying wall of thetube being pressed inwardly to fill said groove; and the tubeterminating within said groove.

13. In a spool or bobbin as set forth in claim 12, said metallicbushings each having outwardly flared ends biting into the wall of saidbore.

14. In a spool or bobbin as set forth in claim 12, the wall of the tubein way of the ends of the slot being slitted and inturned to overlie andprotect the base of the slot.

EARL G. CROOKS.

